20-Year-Old Data Could Explain Ganymede’s Unique Magnetosphere

Jupiter’s moon Ganymede, the largest planetary satellite in the solar system, was studied by NASA’s Galileo spacecraft between 1996 and 2000. It is the only known moon with a magnetosphere.Larger than Mercury and Pluto, and twice as massive as the moon we are familiar with here on Earth, Ganymede is the largest natural planetary satellite in the solar system. It is thought to have a large subsurface ocean, sandwiched between two layers of ice and possibly containing more saltwater than all the water in Earth’s oceans.

True , Throw them in the millpond and see if they float. Tom in Florida says Between 2008 and 2012, my thinking on this conundrum drifted towards a simple spin- orbit coupling mechanism that involved the planets Venus , Earth and Jupiter .

Venus is the second planet from the Sun, orbiting it every 224.7 Earth days. It has no natural satellite. It is named after the Roman goddess of love and beauty. After the Moon, it is the brightest natural object in the night sky, reaching an apparent magnitude of −4.6, bright enough to cast shadows.

Who knew? The orbits of planets hundreds of millions of miles away can change weather patterns here on Earth.

Every 405,000 years, gravitational tugs from the planets Jupiter and Venus gradually affect Earth's climate and life forms, according to a new study published Monday.

Our galaxy's colossal black hole may have huge hidden 'siblings'

New research shows the Milky Way and galaxies like it may contain several supermassive black holes.Now the results of a large-scale cosmological simulation are in, and they suggest that galaxies like ours commonly host several of these supermassive black holes (SMBHs) — including some that wander unseen far from the galaxies' centers.

The gravitational pull of Saturn and Jupiter in particular has changed Earth ' s axial tilt, affecting the way sunlight falls and therefore Earth ' s climate . Monet also studied creative writing at Eugene Lang College in New York and Mills College in Oakland.

Mitrovica has used numerical simulations to show that these aspects of the Earth ' s orbit have been affected by the gravitational attraction of Saturn and Jupiter . (1997, December 18). Other Planets Influence Earth ' s Climate , University Of Toronto Scientist Says .

In fact, this pattern has been going on for at least 215 million years and allows scientists to more precisely date geological events like the spread of dinosaurs.

"Scientists can now link changes in the climate, environment, dinosaurs, mammals and fossils around the world to this 405,000-year cycle in a very precise way," said study lead author Dennis Kent, an expert in paleomagnetism at Columbia University's Lamont-Doherty Earth Observatory and Rutgers University.

The cycle has been happening for hundreds of millions of years, from before the rise of dinosaurs, and is still active today, scientists say.

“The climate cycles are directly related to how the Earth orbits the sun and slight variations in sunlight reaching Earth lead to climate and ecological changes,” said Kent, who studies Earth’s magnetic field.

Hubble Detects Helium On Distant Exoplanet

The novel technique that led to this discovery could be the key to detect atmospheres on distant Earth-sized exoplanets.The inert gas, according to the theoretical models, is the second most common element in the universe after hydrogen. However, despite searching it for years, scientists weren’t able to detect its presence anywhere beyond our solar system.

Long before Mercury, Venus , Earth , and Mars formed, it seems that the inner solar system may Earth ' s magnetic field is not about to reverse, study finds. Apr 30, 2018 14. European astronomers have found two new Jupiter -sized extra-solar planets, each orbiting one star of a binary-star system.

For our solar system, the orbits in which a planet would be too close to the Sun — so that at some point Crude speculations about just such radical instabilities in the Earth ’ s own climate had been 20. Newell also says that " study of the role of halogens in the atmosphere of Venus led to the

Jupiter and Venus are such strong influences because of their size and proximity. Venus is the nearest planet to us — at its farthest, only about 162 million miles — and roughly similar in mass. Jupiter is much farther away, but is the Solar System's largest planet.

The study says that every 405,000 years, due to wobbles in our orbit caused by the gravitational pulls of the two planets, seasonal differences here on Earth become more intense. Summers are hotter and winters colder; dry times drier, wet times wetter.

At the height of the cycle, more rain falls in the tropics, allowing lakes there to fill up. This compares to the other end of the cycle, when seasonal rains in the tropics "are less and lakes have much less of a tendency to become as full," Kent said.

The results showed that the 405,000-year cycle is the most regular astronomical pattern linked to the Earth's annual turn around the sun, he said.

Right now, we are in the middle of the cycle, as the most recent peak was around 200,000 years ago.

The climate impact from the planets pales when compared to how humans are affecting the planet from burning fossil fuels, for example. "It's pretty far down on the list of so many other things that can affect climate on times scales that matter to us," Kent said.

"All the carbon dioxide we're pouring into the air right now is the obvious big enchilada. That's having an effect we can measure right now. The planetary cycle is a little more subtle."

The study appeared in the Proceedings of the National Academy of Sciences, a peer-reviewed scientific journal.

An Alien Planet's Tilt Could Kill Life .
Terrestrial life is intimately influenced by the tilt of Earth's axis, so it shouldn't surprise us if the same is true elsewhere.That's the finding of a new paper accepted for publication in The Astronomical Journal. The study looked at how a second planetary trait—the tilt of its axis—inflences its climate.

Similar from the Web

New study suggests a link between the 11 year | Watts Up With That? - wattsupwiththat.com

True , Throw them in the millpond and see if they float. Tom in Florida says Between 2008 and 2012, my thinking on this conundrum drifted towards a simple spin- orbit coupling mechanism that involved the planets Venus , Earth and Jupiter .

Venus - Wikiquote - en.wikiquote.org

Venus is the second planet from the Sun, orbiting it every 224.7 Earth days. It has no natural satellite. It is named after the Roman goddess of love and beauty. After the Moon, it is the brightest natural object in the night sky, reaching an apparent magnitude of −4.6, bright enough to cast shadows.

How Does the Solar System Affect the Earth ? | Sciencing - sciencing.com

The gravitational pull of Saturn and Jupiter in particular has changed Earth ' s axial tilt, affecting the way sunlight falls and therefore Earth ' s climate . Monet also studied creative writing at Eugene Lang College in New York and Mills College in Oakland.

Mitrovica has used numerical simulations to show that these aspects of the Earth ' s orbit have been affected by the gravitational attraction of Saturn and Jupiter . (1997, December 18). Other Planets Influence Earth ' s Climate , University Of Toronto Scientist Says .

Wandering Jupiter accounts for our unusual solar system - phys.org

Long before Mercury, Venus , Earth , and Mars formed, it seems that the inner solar system may Earth ' s magnetic field is not about to reverse, study finds. Apr 30, 2018 14. European astronomers have found two new Jupiter -sized extra-solar planets, each orbiting one star of a binary-star system.

Venus & Mars - history.aip.org

For our solar system, the orbits in which a planet would be too close to the Sun — so that at some point Crude speculations about just such radical instabilities in the Earth ’ s own climate had been 20. Newell also says that " study of the role of halogens in the atmosphere of Venus led to the

What if Jupiter had had a more eccentric orbit ? Could that have affected the habitability of Earth ? A new peer-reviewed study published on preprint site Arxiv, called "The role of Jupiter in driving Earth ’ s orbital evolution," examines these questions in more detail.

Venus Earth | Jupiter - wn.com

We're gonna say all the planets from the first to the last Mercury, Venus , Earth , Mars, Jupiter , Saturn, Uranus, Neptune. The temperatures on the planet Venus are hot enough to melt lead, but a new report from NASA suggests that the planet may have had a very different climate in the past.

New Climate Modeling of Venus May Hold Clues to Earth ’ s Future. The reason for the backward orbit of the tiny particles is not yet clear, he said … "The pulses are coming from the north pole of Jupiter ," says Randy Gladstone, a scientist at the Southwest Research Institute and leader of the

Amazon is reportedly blacklisting customers who abuse the site’s policies by making too many returns. Amazon is reportedly blacklisting customers who abuse the site’s lenient return policy.“We want everyone to be able to use Amazon, but there are rare occasions where someone abuses our […]

Fortnite's newest patch was released on Tuesday morning and players quickly noticed there was an addition to the game that wasn’t in the patch notes: a new backpack called, Eye of the Storm Tracker. As it turns out, the reason the item wasn’t in the patch notes is because it wasn’t […]

RuneScape Classic, the original version of the game released by developer Jagex in 2001, is shutting down. RuneScape Classic is the name of Jagex’s classic fantasy MMORPG that many people cite as their first foray into online gaming. A sequel to the game was released in 2004, and that’s […]

The iPhone X may not have helped Apple shatter any quarterly sales records, but it's still performing incredibly well in the market place.&nbsp;In light of that, a new report from Counterpoint Research reveals that Apple during the first quarter of 2018 saw iPhone sales in the […]

Twitter's other clients now have some of the features you take for granted using its main apps. Its mobile web version, Twitter Lite and Twitter for Windows now support night mode, real-time updates on replies, likes and retweets as well as a newer Tweet compose window. They're not […]

<p>Engineers are studying a significant cooling problem with the primary imaging system aboard the recently launched GOES-17 weather satellite that is limiting infrared observations critical to forecasting, officials said Wednesday.</p>Engineers are studying a significant cooling […]